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复习提问 PowerPoint PPT Presentation


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复习提问. 气力式精密播种机包括动力部分、( )、( )、( ) 洋葱育苗选择( ),西瓜育苗选择( ),花卉育苗选择( ) 夏季一般使用( );冬季一般使用( ) 如果穴盘要重复使用,对再次利用的穴盘进行消毒,不能使用( ) ,消过毒的穴盘在使用前要( ). 压穴工作机组. 控制部分. 播种工作机组. 128 穴盘. 72 穴盘. 288 穴盘. 白色穴盘. 黑色穴盘. 漂白剂. 清水洗净晾干.

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复习提问

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128

72

288


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=6:3:1


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5


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5.1.

5.2.

5.3.

5.4.


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Root growth potential

RGPRGPRGP24

RootGrowthPotential


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25312~15h1639~12h60~80%2~4d28d


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10156102/3


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cm/mm

/


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--


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--


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5.2


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,101/3


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(1)

(2)

1


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2


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1/2

3cm


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6-82/3

1/4-1/2


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(1)

(2)

(3)2-3d

(4)

(5)

3


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(1)

(2)

(3)

(4)


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5.3


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1)2) (20)


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5.4


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15-3318

85%100%


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